8101285 has 4 divisors (see below), whose sum is σ = 9721548. Its totient is φ = 6481024.

The previous prime is 8101283. The next prime is 8101297. The reversal of 8101285 is 5821018.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1542564 + 6558721 = 1242^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 8101285 - 2¹ = 8101283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8101283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810124 + ... + 810133.

It is an arithmetic number, because the mean of its divisors is an integer number (2430387).

Almost surely, 2^8101285 is an apocalyptic number.

It is an amenable number.

8101285 is a deficient number, since it is larger than the sum of its proper divisors (1620263).

8101285 is a wasteful number, since it uses less digits than its factorization.

8101285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620262.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8101285 is about 2846.2756366874. The cubic root of 8101285 is about 200.8405044797.

The spelling of 8101285 in words is "eight million, one hundred one thousand, two hundred eighty-five".